The "new kit" will be an upgraded "High Boost" option for the existing kit. It will still use the STILLEN Manifold. Is there a reason you want to retain the stock manifold in particular?

For the Stellar Team at Stillen...
Now that we are Talkin' Mo' Pow'r... :yum:
Gotta say that I'm liking this a lot !

I like the on demand performance of the SC'r,
I like the idea of the centrifugal SC'r and your bracket.
I like the intercooler incorporated in to the manifold.
I like the design concept, testing,ez of installation, and roadability/reliability of your Kit ... kudos... :tiphat:

I'm in the process of building my motor and will be staying with the Stillen Kit basics...but upgrading the SC'r from the V3 to the V2 Ti.

What I would like to see is a race package geared for a built motor that would support 15 lbs of boost...along with a Cog Pulley option.
Sort of a Stillen on Steroids ...:D

Hopefully that may be in your future plans, but for now, I'm about ready to get my motor back from IPP and will be putting in that bigger Vortech V2 Ti SCr' (similar specs as the V1 Ti on the Vortech website) back in the car very soon.
Upgraded to the 9.5:1 CP forged pistons with forged crank arms and ARP L19 bolts

I would really appreciate any suggestions you may have regarding upgrading the current Stillen Kit Blow Off Valve if needed to handle the 15psi, any mods that I may be able to do to the manifold/intercooler that would increase efficiency, any other ideas along these lines of stepping up to the next level utilizing my own version of "Stillen on Steroids" would be greatly appreciated !

Thanks, (PM OK)

Mark you have my car now so tell the shop to get to work and give me more powaaaaaa :driving:

Let's just get her running right first :)

On a serious note. The high boost kit, once developed will not be available as a smog legal kit for California residents. It will also be not recommended for 91 octane.

Sounds like a Cali problem HAHA!! JK! but I am very excited for this and I love my Stillen kit still to this day. Great team and a fantastic kit :)

I feel for you guys and the Cali car laws, that crap would drive me nuts.

I lived there for 21 years and their laws are no fun lol.

Oh that's just booooo

You must love Florida then!


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I do! But I do miss the Cali weather sometimes :tup:

In CA:

Officer= Hey is this car modified? I'm gonna need you to step out of the car and get beat half to death

In FL:

You: Hey officer check out my new turbos want a ride?

Oficer: Cool man, but no thanks I'm too busy beating you half to death. "PUT DOWN THE SKITTLES DAMN IT"

Keep telling your self that! I own a machine gun, suppressors, short barrel rifles, can run 93 octane with no corn and no one cares what I do to my car, it sucks here! If you act an idiot here and get shot thats your problem not mine, you can have Cali!

A lot of us either have the Motordyne or Z 1 modified manifold. Plus it's a cleaner look when u can retain the stock manifold cover when people like me have their cover painted or redone in CF. Just a little more options would be nice. If u had that option I would purchase it. Just don't want to lose out on money I already invested...

Hi Guys,

The STILLEN manifold is a huge part of the design of the supercharger system and will not be going away. While this is unfortunate for those who want to retain an aftermarket or O.E. manifold, for us it is too important to the performance of the supercharger to lose. We really prefer air to water intercooler setups which is one of the main reasons we chose to design and manufacture the cast aluminum STILLEN manifold.

From a performance standpoint we do not feel it is possible to offer an air to water intercooler setup with the factory manifold with trying to package everything under the engine bay. There would be too many compromises made and we're not willing to do that.

It's still a bit early to talk too much about any possible "Stage 2" kit as we are very early in the development stages and we want to make sure we're fully comfortable with the kit before we release it to the public.

air to water inter-cooling is used for packaging in a roots setup, and for drag racing only where there is an ice chest and it is used to achieve sub ambient air charge temperatures, in every other way air to air is superior, including in fail safe ability if you get a hole in your air to air inter-cooler you have a boost leak, if you get a hole in your stillen water cooler you have a blown engine, if you have a water leak in your system your inter-cooler is effectively gone and the charge temps and detonation will go up. It would be nice to hear your reasoning for keep an air to water cooler, heat soak resistance? you know your kit heat soaks in half a session on a track right?

I guess just to add in to the above "IF" you need to keep you manifold design why not have one with out the extra cooler in it. Everyone I know has moved on from you heat exchanger to the frozen boost one, Why not just use a larger one than the one we all moved to an remove the one in the manifold. ?

They work together. Everyone still uses the intercooler that is in the manifold. But they swapped out the smaller heat exchanger that comes with Stillens kit for a larger one from FrozenBoost. It's kind of like swapping from a 19row oil cooler to a 34row.

Air to water intercoolers aren't limited to roots superchargers or drag racing vehicles exclusively. They are definitely more prominent in those applications but to say that those are the only applications utilizing air to water intercooler systems is incorrect.

Vortech uses air to water intercoolers on the following applications:

2006-2010 Jeep SRT8
2005-2010 Chrysler/Dodge 5.7L Hemi Systems
2005-2010 Chrysler/Dodge 6.1L Hemi Systems
Various Mustang applications

NISSAN built the 370Z to be a great sports car, and they did just that. I love driving our 370Z every chance I get. However, they did not build a race car. As such these cars, along with almost every other production car in the world, experience issues when being pushed hard on a race track:

Engine oil temperature
Power steering fluid temperature
Brake overheating
Differential overheating/failure

In all of our marketing and all of our conversations regarding our kit we made it very clear that our goal was CARB legality and street performance. Our goal has never been to build a race car. Just like NISSAN wasn't building a race car, neither were we.

Heat is obviously an issue on the 370Z, this is something we can all agree on. The oil wants a large cooler, the power steering needs a large cooler, and in the case of an automatic transmission the transmission wants a large cooler. On a roots supercharger you're primarily concerned about the packaging of the blower to the intake manifold and the necessary cooler. However, when engineering a supercharger system one must look at the total vehicle package. If I put this here, what happens to that. So if I install oil coolers, power steering coolers, and transmission coolers (in the case of an automatic transmission) in front of my radiator what happens to my radiator performance? Then if I cover all of the coolers with an intercooler, what happens to my various other coolers? All of this needs to be taken into consideration.

Let's be realistic about air to air intercoolers as well. The efficiency of the intercooler is reliant on ambient air temperatures. The air to air intercooler must be mounted in a location where it will receive direct airflow. Additionally, the air to air intercooler has to be very large in order to allow for sufficient internal airflow to not impact intercooler efficiency. This will impact various other systems of the vehicle.

Should we decide to offer a kit intended for race cars we will do extensive testing on race courses. I'm pretty sure we know a driver that can put a car through its paces...

Hey you guys make your choice on it but at the end of the day it is the lowest power, least safe kit made (fortunately for you it is also the most readily available kit as well). Lets leave the oil and coolant to the side for now, it takes 10 minutes to exceed the capacity of your intercooler system as it is shipped, are you telling me you have a disclaimer somewhere that says "don't drive your car for more than 10 minutes or severe horsepower and reliability issues will occur, it's not a track car so don't think of driving it for a while and then accelerating it isn't built for that"?(I didn't know I bought a $32,000 versa)

An air to water intercooler is ultimately an air to water to air intercooler, it completely relies on ambient temps as well the hotter it gets the hotter the iat's are that doesn't change between an air to air and air to water. an air to air inter cooler is more efficient due to the difference in delta t in the systems, instead of dumping heat from a hot manifold into warm water then into cool air it goes straight from hot air to cool air the higher delta between the temps allows the air to air cooler to dump more heat from a smaller surface area. the thermal capacity, and conductivity increase of transmitting heat into water don't come into play unless the system is capable of bringing the water temps back down to at least near ambient, which without pumping the heat out via an ice box or refrigerant system is next to impossible. You call it a street car we call it a crappy inter-cooler setup.

Edit: Also have you ever actually flow tested your manifold? You say it is necessary for the performance of the kit but it actually makes less power than the factory manifold. I'm not trying to bust your balls here it's more like constructive criticism.

Also I know that air to water systems aren't limited to roots and drag setups, it's just that they are the only people who actually derive more pro's than con's of using it, or are required to use it.

Also wasn't it you guys who designed a different front bumper just to get better air flow to move the oil and other coolers out from the front of the car, wouldn't this free up room for an intercooler while still allowing virgin airflow to the oil cooler? and appropriately sized you really don't need the whole bumper opening for the intercooler.

LOL I know that I was the first one to switch it :driving:

Kyle let be serious for a second, You know and the guys on here know I am one of the biggest pushes for you and the kit, I really loved mine and took it almost further than anyone else" Cliff" beat me buy 13 WHP but he also has a manual and I had a auto AWD . I ekk'd out 457 WHP He made 470
The heat exchanger on you kit is not efficient at all. Why else would you put another in the manifold ? The outside one is SMALL looks like an oil cooler and you mount the darn thing to the radiator " Come one man" I Took my car to the track on not a hot or humid night was about 80 and almost no humidity I made 2 passes , 2! the the car was heat soaked, On my third run the car felt like it was pulling a piano it was so bad I was only trapping 107 and pulling 13.1's - Those are stock motor bolt on numbers. I never made it back to the track because the damn thing detonated and threw a rod( I'm not the only one either) It is a fact that the heat exchanger is not large and will cause heat soak and issues. Don't get me worng I still love you kit want one again some day but will be looking for a kit with out the heat exchanger and NO tune, Don't even get us started on the can tune that some of us cant start the car because it so RICH or the fact that the can tune make zero power, Just speaking from experience again. Mine on the can tune made 342 WHP( For ($9600) ! ? Made 300 full NA. Custom tune made 412 WHP BTW that's you advertised power level and not the 342WHP.

another great option would be smaller pulleys to increase boost higher for people with built motors.

what's the best way to get more than 9psi out of the kit?

would be good to see the JUN exhaust cams tested with this as well, I might be doing this with an e85 conversion later this year, trying to find a decent tech who is confident to do the cam swap. I've installed the stillen kit myself, not confident to crack open and swap cams though.

An air to water system always consists of two cores one inside the manifold and one at the front of the car they are two parts of the same system and both cores need to be in place. The core in the manifold pulls the heat out of the air and the core at the front of the car dumps the heat to ambient. but yeah the cores are too small and inefficient, and the manifold needs some help in the airflow department.

A different head unit as in probably the v7 JT CCW unit vortech part number 2A159-010, V7 YSi CCW is a part number 2A159-050 and is rated for a little more

The Stig ?...;-)

Your post made it sound like people were removing the intercooler from the intake manifold. And that needs to be corrected.

The Si impeller swap from Vortech is under $400. It gives you an extra 100 cfm. In my case it was a 3-4 psi increase.

Vortech now makes the V2 Ti which is what I'll be using. (the V7 may be too much)

It is not listed on the Vortech site yet, but the specs are almost exactly like the
V-1 Ti.

V-1 Ti Supercharger | Vortech Superchargers

The main difference between the T-1 and T-2 is that the T-2 has helical gears instead of the straight and is quieter.
It has a little higher CFM and max RPM rating ... it also has a larger input dia. and is 75% efficient.

According to Bobby at CIN Motorsports it will bolt right in to the Stillen Blower Bracket perfectly, but since it is slightly larger it may need some fitting/clearance.

Should put out about 3 more psi than the Stillen V3 with the upgraded impeller...which produced almost 12psi on my car.
That theoretically would put it at 15psi without doing anything else (for built motors only)

Speaking of the Blower Bracket ... Any chance that the Stillen guys could redesign/strenghten and/or brace the bracket ?
Read somewhere that a 2 piece sandwhiched bracket was more rigid and didn't flex - reducing or eliminating belt slip - and that can't be a bad thing.

Motor's almost ready to ship from Import Parts Pro.

Should be wrenchin' on it again here shortly... :tup: ...

I had the Si impeller upgrade done by Vortech as well ... had 30,000 miles on the SC'r and it needed to be rebuilt once they evaluated it.

Cost skyrocketed past the $1,000 mark.

It did make 11.9 lbs of boost with the 9 lb. pulley

This is what the guys at Jtran came up with to strengthen my bracket. It was flexing a lot at 15+ psi. This bracket cured it.

http://i1182.photobucket.com/albums/...D227555830.jpg

Awesome !
Will contact Jtran ...
I see you have a cog system...
Can you turn me on to those part numbers as well ?
Did you have to change out the BOV to handle the 15psi?

I ordered everything from Vortech except the idler pulley for the cog belt. Jtran had it built for me. They kept the machine shop drawings for it in case anyone else needed it. I don't have the part numbers anymore, I got rid of the Stillen kit early this year. But, I got pretty much everything from NutNMuch and Mr. Squeeze.

Edit: I think they are in NutNMuch's Journal.

Thats still chump boost go v7 ysi and have enough blower to match the turbo guys.

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You make it sound easy. I hope someone does have the funds and patients to make one work.

On mine I was seeing 12 also, Stock 8 PSI pulley tho, An my boost was building way sooner right around 3k all the way to redline.

The only change I have made to the kit is replacing the Stillen heat exchanger to the larger frozenboost one. Lowering the intake charge as much as possible never hurts and glad there is an option for this. I love my stillen kit a lot and very happy with it but the only thing I would change is the heat echanger since it relocates to the front end/looks awesome and helps keep things much cooler.

ouch ...:confused:

Just checked the Vortech specs for the V-7 and it states that it is only available in CW rotation.
I don't know if that has changed or not...it may have tho' since the Vortech site hasn't even been updated to show their new V-2 Ti.

The V-7 YSi does have more output and a higher RPM rating than the V-2 Ti and it most likely is less efficient at lower RPM with our motors.

It is also physically larger which might make for a real tight fit.
Wouldn't want to bend or cut up the car too much just to get it to fit in...
Not too much room in there as it is.

It also needs bigger piping than the existing Stillen piping, so that would have to be addressed as well.

I don't ever plan on making 1,000 hp with this car so the V-7 isn't the right choice for me.

I guess I'm just not a Turbo guy ...

Man i posted up the pn's for both trims of the v7 in ccw rotation, and it isnt that much bigger, and the hp rating on the vortech site is in crank so you need a 1000hp blower to actusly hit 700-800hp. For a built motor guy wanting to get some use out of his new $8k motor why play around with little blowers trying to get close to 600hp when you could go v7 and be done with it. Vortech has the drawings of all the chargers available and the volute on the v7 is like a .5 inch bigger.

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Thanks for the update ... I had spoken with Bobby at CIN Motorsports with my plans to upgrade my SC'r and he recommended the V-2Ti over the V-7 for my application.

He had built a car for a client with the V-7, utilizing his own custom designed and manufactured blower bracket (to reduce bracket flex) , along with his own custom designed intake manifold and piping.

I would've gone for it then and there but he wasn't ready to sell it all as a package kit citing that it wasn't perfected to his liking just yet, and therefore still under development.

http://www.the370z.com/forced-induct...arger-kit.html

He also told me that the V-7 was overkill unless I (like his customer) were planning to make 1,000 hp...which I wasn't

Thats when he told me of the V-2Ti and that it would 'fit right in' to my already existing Stillen set up, with only a few tweaks needed.
It would easily make 600 to 700 hp.

He did strongly suggest the the Stillen blower bracket be braced or reinforced as it would want to flex as the boost headed up towards 15 or so.

He also recommended the Gates Green Stripe serps as well.

All this free, friendly, and informative info from a man who was in the middle of race season and knee deep in deadlines.

I trust his advice, he's a man that's been there and done that.
And the more I thought about it, the more it was the logical choice.

If he ever does come out with that kit of his and he is satisfied enough to put his personal stamp of approval on it, I just may have to 'upgrade' once more :tiphat: